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LeGoues, F. K.; Wright, R. N.; Lee, Y. W.; Aaronson, H. I. |
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Influence of Crystallography Upon Critical Nucleus Shapes and Kinetics of Homogeneous FCC-FCC Nucleation--Part V. The Origin of GP Zones in Al-Ag and Al-Cu Alloys |
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Journal Article |
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1984 |
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Abstract |
Acta Metallurgica |
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32 |
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10 |
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1865-1870 |
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Carnegie Mellon Univ,Dept Met Engn & Mat Sci,Pittsburgh,Pa 15213
Michigan Technol Univ,Dept Met Engn,Houghton,Mi 49931 |
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Times Cited: 9
Article
English
Cited References Count: 15
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refbase @ user |
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1341 |
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Moon, K. I.; Chang, K. Y.; Lee, K. S. |
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The Effect of Ternary Addition on the Formation and the Thermal Stability of {L1$_2$ Al$_3$Zr} Alloy with Nanocrystalline Structure by Mechanical Alloying |
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Journal Article |
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2000 |
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Journal of Alloys and Compounds |
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312 |
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1-2 |
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273-283 |
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refbase @ user |
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1423 |
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Moon, K. I.; Kim, S. C.; Lee, K. S. |
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A Study on the Microstructure of {D0$_{23}$ Al$_3$Zr and L1$_2$ (Al+12.5 at.% Cu)$_3$Zr} Intermetallic Compounds Synthesized by {PBM and SPS} |
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Journal Article |
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2002 |
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Intermetallics |
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10 |
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2 |
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185-194 |
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refbase @ user |
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1424 |
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Moon, K. I.; Lee, S. H.; Seon, J. K. |
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The Effect of {Cu and Zn} on the Phase Stability of {L1$_2$ Al$_3$Hf} Intermetallic Compound Synthesized by Mechanical Alloying |
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Journal Article |
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2002 |
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Intermetallics |
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10 |
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8 |
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793-800 |
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refbase @ user |
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1425 |
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Park, S. I.; Han, S. Z.; Choi, S. K.; Lee, H. M. |
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Phase Equilibria of Al$_3$(Ti,V,Zr) Intermetallic System |
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Journal Article |
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1996 |
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Scripta Materialia |
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Scripta Mater. |
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34 |
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11 |
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1697-1704 |
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refbase @ user |
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1493 |
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Park, S. I.; Han, S. Z.; Lee, Z. H.; Lee, H. M. |
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A Correction to Optimum Alloy Composition for Design of High-temperature High-Strength Al-Ti-V-Zr Alloys through Thermodynamic Calculations |
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Journal Article |
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1997 |
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Scripta Materialia |
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Scripta Mater. |
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37 |
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1 |
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93-97 |
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refbase @ user |
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1494 |
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Russell, K. C.; Barnett, D. M.; Altstetter, C. J.; Aaronson, H. I.; Lee, J. K. |
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Strain-Energy Interactions, the To Concept and Sympathetic Nucleation |
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Journal Article |
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1977 |
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Scripta Metallurgica |
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11 |
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6 |
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485-490 |
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Mit,Dept Mat Sci & Engn,Cambridge,Ma 02139
Michigan Technol Univ,Dept Met Engn,Houghton,Mi 49931
Stanford Univ,Dept Mat Sci & Engn,Stanford,Ca 94305
Univ Illinois,Dept Met & Min Engn,Urbana,Il 61801 |
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Times Cited: 8
Article
English
Cited References Count: 17
Dl496 |
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refbase @ user |
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1547 |
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Kim, S.-H.; Lee, J.Y.; Ahn, J.-P.; Choi, P.-P. |
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Fabrication of Atom Probe Tomography Specimens from Nanoparticles Using a Fusible Bi-In-Sn Alloy as an Embedding Medium |
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Journal Article |
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2019 |
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Microscopy and Microanalysis |
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25 |
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438-446 |
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atom probe tomography; fusible alloy; nanoparticles |
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We propose a new method for preparing atom probe tomography specimens from nanoparticles using a fusible bismuth-indium-tin alloy as an embedding medium. Iron nanoparticles synthesized by the sodium borohydride reduction method were chosen as a model system. The as-synthesized iron nanoparticles were embedded within the fusible alloy using focused ion beam milling and ion-milled to needle-shaped atom probe specimens under cryogenic conditions. An atom probe analysis revealed boron atoms in a detected iron nanoparticle, indicating that boron from the sodium borohydride reductant was incorporated into the nanoparticle during its synthesis. |
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Cambridge University Press |
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2019/02/04 |
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1431-9276 |
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NU @ karnesky @ |
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11534 |
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Kang, M.-J.; Pyun, J.-C.; Lee, J.-C.; Choi, Y.-J.; Park, J.-H.; Park, J.-G.; Lee, J.-G.; Choi, H.-J. |
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Nanowire-assisted laser desorption and ionization mass spectrometry for quantitative analysis of small molecules |
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Journal Article |
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2005 |
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Rapid Communications in Mass Spectrometry |
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19 |
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3166-3170 |
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1097-0231 |
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NU @ karnesky @ Kang2005 |
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9529 |
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Lee, S.-W.; Yeh, J.-W. |
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Superplasticity of 5083 alloys with Zr and Mn additions produced by reciprocating extrusion |
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Journal Article |
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2007 |
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Materials Science and Engineering: A |
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460-461 |
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409-419 |
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Aluminum alloys; Extrusion; Superplasticity |
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In this study, 5083 aluminum alloys modified with grain refiner, 0.25% Zr and 0.46% Mn, were processed by reciprocating extrusion to yield high-strain-rate superplasticity above 400 [degree sign]C and superior room-temperature mechanical properties. Without any prior homogenization treatment, 10 extrusion passes could give the cast billets an equiaxed grain structure with a grain size of about 4.5 [mu]m and a subgrain size about 0.2 [mu]m, and a uniform distribution of fine inclusions and dispersoids in the matrix. The fine-grained structure was stable up to 525 [degree sign]C, giving the alloy a high-strain-rate and low-stress superplasticity over a wide operating temperature of 400-500 [degree sign]C. In the tensile test at 500 [degree sign]C, a maximum elongation of 1013% and a low flow stress of 7.7 MPa at 5 x 10-2 s-1 were achieved. The apparent and true activation energies for low temperatures (300-400 [degree sign]C) without high-strain-rate superplasticity were 220.6 and 208 kJ/mol, respectively, whereas those at high temperatures (400-500 [degree sign]C) were 88.4 and 98.7 kJ/mol, respectively. Further analysis confirms that grain boundary sliding is the dominant mechanism over the high-strain-rate region from 1 x 10-2 to 5 x 10-1 s-1 at 500 [degree sign]C, and power-law breakdown mechanism occurs over the strain rate from 5 x 10-4 to 1 x 10-2 s-1 at 300 [degree sign]C. The high-strain-rate superplasticity was more strongly enhanced by Zr addition than addition of Cr and Mn. Two enhancing mechanisms for the maximum superplastic elongation and the optimum strain rate are proposed. This study concludes that the effectiveness of Zr is caused by the fineness and the coherency of Zr-rich dispersoids in the matrix. |
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NU @ karnesky @ |
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9637 |
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